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Spend an afternoon brushing up on statistics. Discover how the Krebs cycle works. Get a head start on next semester's geometry. Prepare for upcoming exams. Or, if you're feeling particularly adventurous, learn how fire-stick farming changes the landscape of Australia.
Whether you're a student, teacher, homeschooler, principal, adult returning to the classroom after 20 years, or a friendly alien trying to get a leg up in earthly biology — Khan Academy's personalized learning library is available to you, for free.
- Learn anything, for free: Thousands of interactive exercises, videos, and articles at your fingertips. Study math, science, economics, finance, grammar, history, government, politics, and much, much more.
- Sharpen your skills: Practice exercises, quizzes, and tests with instant feedback and step-by-step hints. Follow along with what you're learning in school, or practice at your own pace.
- Keep learning when you're offline: Bookmark and download your favorite content to watch videos without an internet connection.
- Pick up where you left off: Tailored to your current learning level, our mastery system gives instant feedback and recommendations on exactly which skills and videos to try next. And, if you choose to create a free account, your learning syncs with http://khanacademy.org, so your progress is always up-to-date across all your devices.
Learn using expert-created videos, interactive exercises, and in-depth articles in math (arithmetic, pre-algebra, algebra, geometry, trigonometry, statistics, calculus, differential equations, linear algebra), science (biology, chemistry, physics), economics (microeconomics, macroeconomics, finance and capital markets), humanities (art history, civics, finance, US history, US government and politics, world history), and more (including computer science principles)!
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∙ Bug fixes and performance improvements.
Ratings and Reviews
Khan Academy is an education app for everyone—whether you’re a parent helping your first grader with geometry or a postgrad looking for a deep dive into microfinance. If there’s a topic you want to learn about—no matter how basic or advanced—chances are Khan Academy has a video lesson for it.
Really Good but needs a tiny improvement
Hello Khan Academy devs,
First of I would like to thank you for making such an amazing app which has been helping a lot to me. Personally I use it daily after my online classes and it is just more than a revision, while studying with khan academy it gives me much more knowledge which is helpful for me apart from the school curriculum, But I think more topics should be added to the app like some important topics are missing from the app (or atleast from my region). I get results for most of the things that I search on the app to study almost like 90% , but the important part is that remaining 10% is the part which you wish was on the app cause its that 10% which is the most focused in the Indian Syllabus and is asked most of the time in exams, so I would just like the devs to go through the Indian syllabus and add the missing topics to the app or the website. Apart from that the app is great and I recommend everyone to use it to gain a good chunk of knowledge for your life.
Useful app and scope to add further
My both kids are using the app and thanks for developers keeping them free and adding more courses. I would like to see foundation courses like CPT, CLAT and other courses subjects related to CA, ICWA which will help students a lot. Apart from course, I see lot of Indians have good knowledge but struggle on English speaking. So any course that can help English speaking and neutralise English will help a lot. Many of this essential course neither accessible nor affordable for them, but apps like this with low cost internet it will help all students , irrelevant of their status, education, location.
Thanks again and keep improving the product, please also try to include option to donate in local currency like INR.
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